Granted Patent
Utility
US 5,486,431 · App. 08/206,051
Method of producing button-type batteries and spring-biased concave button-type battery
Inventors:
John R. Tuttle, Mark E. Tuttle
Patented Case
View Patent ↗
Granted: Jan 23, 1996
Filed: Mar 2, 1994
Inventors
John R. Tuttle
Mark E. Tuttle
Assignee (at issue)
Micron Communications, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.